The Dorset Coast (and a little bit of Hampshire!) ~ a virtual field trip ~ I took this picture!

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Presentation transcript:

The Dorset Coast (and a little bit of Hampshire!) ~ a virtual field trip ~ I took this picture!

Where it is located

Day 2 – Lyme Regis to Ringstead Bay Day 1– The journey to Dorset!

An aerial photo of Lyme Regis Bay, showing ‘The Cobb’ (Harbour) and where the River Lim meets the sea Groynes

Golden Cap Lyme Regis ~ Charmouth ~ Golden Cap

The cliff top at Black Ven Black Ven between Lyme Regis and Charmouth. Upper Greensand lies over Lower Jurassic clays. The largest coastal mudflow in Europe took place here in the winter of 1958/9 The coast is unstable because there are numerous situations where porous strata, principally the Chalk and Upper Greensand, lie over impermeable clays.

How Landslides occur

Chesil Beach Isle of Portland The Fleet West Bay (west) Pebbles are ’sorted!’ Portland (east) The gradient of the beach can get very steep

The Isle of Portland When the island was uplifted, a series of massive fractures developed in the limestone.

Weymouth is a traditional seaside resort. It is protected by the Isle of Portland. Portland Harbour (South of Weymouth) Weymouth

White Nothe Headland from Ringstead Bay

Day 3 – Ringstead Bay to St. Alban’s head Durdle Door ~ Lulworth Cove ~ Stair Hole ~ Warbarrow Bay ~ Tynham ~ Broad Bench ~ Kimmeridge ~ Winspit

Durdle Door ~ A Limestone Arch Eventually the arch will collapse to leave a sea stack

Limestone Headlands Soft sand and clays Chalk Hills stop the cove eroding any further inland Lulworth Cove

Small arch is only gap in the limestone. Marine processes eroding further inland Stair Hole

The formation of Lulworth Cove, Stair Hole and the future

Worbarrow Bay Tyneham from Gadd Cliff (Note the land use) Broad Bench

Kimmeridge Bay – A wave cut platform

Chapmans Pool St. Alban’s Head Waves shape the coastline. Winspit Winspit (behind)

Day 4 – St. Albans Head to Sandbanks

Dancing Ledge (+ tidal pool!) Looking out to see from Anvil Point Durlston Head Peveril Point Swanage Bay Old Harry Sandbanks Studland Anvil Point

Swanage Bay Swanage

Old Harry Rocks – A stack Stack New cave forming Collapsed Undercutting means stack will collapse

Studland – Sand Dune System Fieldwork (transects!) Little Sea 3 Major dune ridges

Development of Studland – Blown Sands Little Sea

View over dune slack with further vegetation succession Younger dunes with Marram Grass Actual fieldwork! Hmmmmmm!

Day 5 – Sandbanks to Barton on Sea and the Isle of White

Bournemouth Sandbanks Bournemouth Pier Bournemouth Groynes

Hengistbury Head Long Groyne Spit Christchurch Harbour Groynes Sediment Build Up

Hengistbury Head Gullies Erosion Unstable Cliffs Salt Marsh Groynes

Barton on Sea Landslides House! Landslip

Barton on Sea Land Use Evidence of lanslides Christchurch Bay

West Cowes East Cowes River Medina To Newport River Medina ~ A Ria Isle of Wight

Day 6 - Back to School That’s it!